Sinclair SCV-750EB Service Manual page 95

LED indicators LED1 and LED2 on inverter module
LED1 flashing pattern
Flashes 8 times and stops for 1 second, then repeats
Flashes 9 times and stops for 1 second, then repeats
Flashes 10 times and stops for 1 second, then repeats
Flashes 12 times and stops for 1 second, then repeats
Errors indicated on LED1
xL0 - Inverter module protection
xL1 - DC bus low voltage protection
xL2 - DC bus high voltage protection
xL4 - MCE error
Corresponding error
93